Re: Backfire
Having timing that is too late (retarded) can cause this same thing sometimes if your engine is running too rich. When the exhaust valve opens, the mixture isn't done burning so it ignites the unburned fuel in the exhaust system and causes a loud bang.
Try doing a throttle reset first.
1. Get in your car
2. Turn the key to the on (not start) position, the position just before the starter
turns over.
3. Press the gas pedal to the floor with the key in the "on" position.
4. Hold the pedal to the floor for five seconds, then turn the key back
to the "off" position (don't remove the key), then release the gas
pedal.
5. Wait 2 mins. for a full alignment.
6. Drive the car as you always do.
Bottle of Seafoam in the gas tank wouldn't hurt either....
Last edited by syfi; Jun 10, 2015 at 09:55 AM.